x x 12 gauge
TRANSCRIPT
Unless otherwise specified, all dimensions on drawings and in charts are in inches and dimensions shown in parentheses are in millimeters.
www.phd-mfg.com
FIG. 1201-1242 15/8” X
13/16” X 12 GAUGE
1211-1212 1221-1222
1231-1232 1241-1242
Fig. No. Type - Description
Bundle Qty. Weight
10ft. (3.05m) 20ft. (6.1m) lbs./ft. kg/m 10ft. 6.1m 3.05m 20ft.
1201 1202 No Openings 1.22 (1.82) 500 (304.8) (152.4) 1000
1201A 1202A Welded Back to Back 2.52 (3.75) 500 (152.4) (152.4) 500
1211 1212 With 11/8" X 9/16" (28.58 X 14.29) slots on 2" (50.8) centers 1.15 (1.71) 500 (304.8) (152.4) 1000
1211A 1212A Welded Back to Back 2.36 (3.51) 500 (152.4) (152.4) 500
1221 1222 With 9/16" (14.29) dia. holes on 17/8" (47.63) centers 1.16 (1.73) 500 (304.8) (152.4) 1000
1221A 1222A Welded Back to Back 2.40 (3.57) 500 (152.4) (152.4) 500
1231 1232 With 3" (76.20) slots 1.15 (1.71) 500 (304.8) (152.4) 1000
1241 1242 With 7/8" (22.23) Knockouts on 6" (152.40) centers 1.22 (1.82) 500 (304.8) (152.4) 1000
Material: Carbon steel Finish: Plain, pre-galvanized, channel
green, e-coat, or hot dipped galvanized
Ordering: Specify figure number, finish,
and number of feet.
Unless otherwise specified, all dimensions on drawings and in charts are in inches and dimensions shown in parentheses are in millimeters.
www.phd-mfg.com
15/8” X
13/16” X 12 GAUGE FIG. 1201-1242
For pierced Channels, reduce beam load values as follows: 1211 & 1212 = 15% 1221 & 1222 = 10% 1231 & 1232 = 30% 1241 & 1242 = 5%
Fig. No.
X-X Axis Y-Y Axis
Area of Section
Moment Of Inertia
Section Modulus
Radius of Gyration
Moment Of Inertia
Section Modulus
Radius of Gyration
in.2 cm2 in.4 cm4 in.3 cm3 in. cm in.4 cm4 in.3 cm3 in. cm
1201 0.376 (2.426) 0.033 (1.374) 0.068 (1.114) 0.297 (0.754) 0.115 (4.788) 0.142 (2.327) 0.554 (1.407)
1201A 0.752 (4.852) 0.148 (6.162) 0.182 (2.982) 0.444 (1.128) 0.23 (9.576) 0.284 (4.654) 0.554 (1.407)
Modules of Elasticity: 29,500,000 psi (203,395.3 mPa)
Section Properties
Beam & Column Load Table
Fig. No.
Beam Span or Unbraced
Column Height
Maximum Column Load
Uniform Load @25,000 psi
Deflection @25,000 psi
Uniform Load @1/240 Span
lbs. kN lbs. kN lbs. kN
1201 12 (304.8)
8407 (37.40) 1079 (4.80) 0.02 (0.51) 1079 (4.80)
1201A 19160 (85.23) 1270* (5.65) 0.01 (0.25) 1270* (5.65)
1201 24 (609.6)
7519 (33.45) 539 (2.40) 0.10 (2.54) 506 (2.25)
1201A 17444 (77.59) 1270* (5.65) 0.05 (1.27) 1270* (5.65)
1201 36 (914.4)
5397 (24.01) 360 (1.60) 0.24 (6.10) 225 (1.00)
1201A 15275 (67.95) 1013 (4.51) 0.14 (3.56) 1013 (4.51)
1201 48 (1219.2)
3178 (14.14) 270 (1.20) 0.43 (10.92) 126 (0.56)
1201A 12692 (56.46) 759 (3.38) 0.25 (6.35) 607 (2.70)
1201 60 (1524.0)
2034 (9.05) 216 (0.96) 0.67 (17.02) 81 (0.36)
1201A 9683 (43.07) 608 (2.70) 0.39 (9.91) 388 (1.73)
1201 72 (1828.8)
- - 180 (0.80) 0.96 (24.38) 56 (0.25)
1201A 6780 (30.16) 506 (2.25) 0.56 (14.22) 270 (1.20)
1201 84 (2133.6)
- - 154 (0.69) 1.31 (33.27) 41 (0.18)
1201A 4981 (22.16) 434 (1.93) 0.77 (19.56) 198 (0.88)
1201 96 (2438.4)
- - 135 (0.60) 1.71 (43.43) 32 (0.14)
1201A 3814 (16.97) 380 (1.69) 1.00 (25.40) 152 (0.68)
1201 108 (2743.2)
- - 120 (0.53) 2.16 (54.86) 25 (0.11)
1201A 3013 (13.40) 338 (1.50) 1.27 (32.26) 120 (0.53)
1201 120 (3048.0)
- - 108 (0.48) 2.67 (67.82) 20 (0.09)
1201A - - 304 (1.35) 1.56 (39.62) 97 (0.43)
1201 144 (3657.6)
- - 90 (0.40) 3.84 (97.54) - -
1201A - - 250 (1.11) 2.25 (57.15) 70 (0.31)
1201 168 (4267.2)
- - - - - - - -
1201A - - 220 (0.98) 3.14 (79.76) 50 (0.22)
1201 192 (4876.8)
- - - - - - - -
1201A - - 190 (0.85) 4.05 (102.87) - -
1201 216 (5486.4)
- - - - - - - -
1201A - - 170 (0.76) 5.16 (131.06) - -
1201 240 (6096.0)
- - - - - - - -
1201A - - 150 (0.67) 6.24 (158.50) - -
Beam Loads: Published loads are given in total uniform load (lbs.) not uniform load (lbs./ft.). For loads concentrated at center of span multiply uniform load by 0.5 and multiply the deflection by 0.8 (refer to page 26 for reduction factors on other beam configurations.). When deflection is not a factor use stress of 25,000 PSI (172.37 mPa). When deflection is a factor use deflection of 1/240 span. *Failure determined by weld shear.
Column Loads: Column loadings are for allowable axial loads for the unsupported heights listed and include a K value of .80. If eccentric, loads should be reduced according to standard practice.
SPOT WELDING Resistance welding of back to back strut channel is accomplished by way of an AC powered press type spot welder. This equipment produces a series of spot welds from 2" (50.8) to 4" (101.6) apart continuously down the length of the channel. Consistency is maintained by the use of a highly sophisticated constant current weld control. This processor is capable of maintaining weld sequence, duration and current control along with other variables. Any deviations in the programmed parameters will issue forth an alarm or shut down fault, which is then investigated. Weld quality is tested every 300-350 welds through the use of a destructive test method. Through the use of modern technology, destructive and non-destructive testing, the quality of strut can be maintained. Spot weld strut is fabricated in accordance with the R.W.M.A. guidelines for resistance welding.